Illinois Dams

1,630 dams tracked by the National Inventory of Dams

Total Dams

1,630

High Hazard

251

15.4%

Poor / Unsatisfactory

6

Average Age

61 yrs

Hazard Classification

High251 (15.4%)
Significant360 (22.1%)
Low1,008 (61.8%)

Condition Assessment

Satisfactory8 (0.5%)
Fair6 (0.4%)
Poor / Unsatisfactory6 (0.4%)
Not Rated1,610 (98.8%)

Federal

48

State

68

Local

286

Private

1,153

All Dams in Illinois

Showing 151175 of 251

Dam NameHeight (ft)YearHazardCondition
Lockport Lock and Controlling Works

Will County

651933HighNot Available
Long Lake Dam

Fulton County

201965HighNot Available
Lower Elmhurst Dam

Cook County

151994HighNot Available
Macoupin Energy Recirculation Pond Dam

Macoupin County

431970HighNot Available
Macoupin Energy/Refuse Disposal Area 5

Macoupin County

951987HighNot Available
Macoupin Energy Refuse Disposal Area 6

Macoupin County

1171991HighNot Available
Macoupin Energy Smith Reservoir Dam

Macoupin County

581969HighNot Available
Marian Lake Dam

Adams County

26HighNot Available
Mauvaise Terre Lake Dam

Morgan County

301923HighNot Available
Mcleansboro Lake Dam

Hamilton County

361937HighNot Available
M. D. Borah Lake Dam

Richland County

361953HighNot Available
Meacham Grove Main Dam

DuPage County

111998HighNot Available
Midlothian Creek Dam

Cook County

221975HighNot Available
Mill Creek Water Reclamation District Dam

Kane County

91995HighNot Available
Miller Lake Dam

Jefferson County

401947HighNot Available
Miller Park Lake Dam

McLean County

331928HighNot Available
Moraine View Dam

McLean County

421963HighNot Available
Nashville City Reservoir Dam

Washington County

261935HighNot Available
Norris City Reservoir Dam

White County

201937HighNot Available
Norris Slurry Impoundment

Fulton County

501955HighNot Available
North Branch Soldier Creek Reservoir Dam

Kankakee County

131990HighNot Available
Northeast Recreation Area Dam

LaSalle County

271988HighNot Available
Northern White Sands Dam

LaSalle County

28HighNot Available
North Pointe Lake Dam

McLean County

81984HighNot Available
Oakland Hills Dam

Madison County

161940HighNot Available
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Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.